tsconfig.json

{
    "files": [
        "src/dummy.vue",
        "src/wrapper.vue"
    ],
    "compilerOptions": {
        "lib": [
            "es5",
            "es6",
            "dom"
        ],
        "target": "es5",
        "module": "esnext",
        "moduleResolution": "node",
        "resolveJsonModule": true,
        "experimentalDecorators": true,
        "allowSyntheticDefaultImports": true,
        "types": [],
        "noEmitOnError": true,
        "strict": true,
        "noFallthroughCasesInSwitch": true,
        "noImplicitReturns": true,
        "noUnusedLocals": true,
        "noUnusedParameters": true,
        "noUncheckedIndexedAccess": false,
        "sourceMap": true,
        "importHelpers": true,
        "forceConsistentCasingInFileNames": true,
        "importsNotUsedAsValues": "remove",
        "skipLibCheck": true,
        "moduleSuffixes": [
            "",
            ".vue"
        ]
    },
    "vueCompilerOptions": {
        "target": 2.7
    }
}